Bip39 Wallet. If your user’s computer is damaged or its tricky disk is destroyed, he should be able to upload the same wallet and make use of the paper backup copy to acquire his Bitcoins again. As every owner of a mnemonic phrase will get an entry to the wallet, https://whatisadirectory.com/listings13038813/bip39-seed-https-linktr-ee-bip39-bip39-tool-can-be-fun-for-anyone